Expose renderer through unstable internals

Summary:
Expose the renderer proxy as `Renderer` from `react-native/unstable-internals-do-not-use`. Generated Codegen modules can be emitted into consumer packages and need a package entry point for dispatching renderer commands without deep imports.

Changelog: [Internal]

Differential Revision: D120991150

Author: rubennorte

packages/react-native/src/unstable-internals-do-not-use.d.ts

@@ -212,3 +212,9 @@ interface PressabilityDebugViewProps {
 export const PressabilityDebugView: React.ComponentType<PressabilityDebugViewProps>;
 
 // #endregion
+// #region Renderer
+
+/** Renderer APIs used by generated Codegen modules. */
+export * as Renderer from '../types_generated/Libraries/ReactNative/RendererImplementation';
+
+// #endregion

packages/react-native/src/unstable-internals-do-not-use.js

@@ -47,6 +47,7 @@ import typeof NativeRedBox from '../Libraries/NativeModules/specs/NativeRedBox';
 import typeof NativeSourceCode from '../Libraries/NativeModules/specs/NativeSourceCode';
 import typeof {PressabilityDebugView} from '../Libraries/Pressability/PressabilityDebug';
 import typeof AppContainer from '../Libraries/ReactNative/AppContainer';
+import typeof * as Renderer from '../Libraries/ReactNative/RendererProxy';
 import typeof {customDirectEventTypes} from '../Libraries/Renderer/shims/ReactNativeViewConfigRegistry';
 import typeof DevLoadingView from '../Libraries/Utilities/DevLoadingView';
 import typeof HMRClient from '../Libraries/Utilities/HMRClient';
@@ -86,4 +87,9 @@ module.exports = {
     return require('../Libraries/Pressability/PressabilityDebug')
       .PressabilityDebugView;
   },
+  // Generated Codegen modules can be emitted outside this package, so they
+  // cannot use package-relative imports to access the renderer.
+  get Renderer(): Renderer {
+    return require('../Libraries/ReactNative/RendererProxy');
+  },
 };

packages/react-native/src/unstable-internals-do-not-use.js.flow

@@ -24,3 +24,4 @@ export {default as NativeExceptionsManager} from '../Libraries/Core/NativeExcept
 export {default as NativeRedBox} from '../Libraries/NativeModules/specs/NativeRedBox';
 export {default as NativeSourceCode} from '../Libraries/NativeModules/specs/NativeSourceCode';
 export {PressabilityDebugView} from '../Libraries/Pressability/PressabilityDebug';
+export * as Renderer from '../Libraries/ReactNative/RendererProxy';